Sweden as a Great Power 1611-1697: Government. Society. Foreign Policy, ed. by Michael Roberts. Documents of Modern History, gen. edd. A. G. Dickens and A. Davies. London, Edw. Arnold, 1968. vii + 183 s. 30 sh.; papercover ed. 15 sh. - Ladewig Petersen, E. (Historisk Tidsskrift, 1970)